EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 12 students in a test are given below. Find the median.
5
5
12
3
9
6
20
9
3
19
20
14
(i)
10
5
12
(ii)
20
(iii)
3
(iv)
17
(v)
9
Question
2
2.
Find the median of all prime numbers between 20 and 80.
(i)
51
(ii)
48
(iii)
53
(iv)
49
(v)
50
Question
3
3.
Find the median of all the factors of 10.
(i)
7
2
(ii)
4
(iii)
13
4
(iv)
9
2
(v)
5
2
Question
4
4.
Find the median of first 6 whole numbers.
(i)
7
2
(ii)
3
2
(iii)
9
4
(iv)
3
(v)
5
2
Question
5
5.
Find the median of all the factors of 40.
(i)
25
4
(ii)
15
2
(iii)
13
2
(iv)
11
2
(v)
7
Question
6
6.
Find the median of the first 15 odd numbers.
(i)
17
(ii)
13
(iii)
15
(iv)
16
(v)
14
Question
7
7.
Find the median of the first 20 even numbers.
(i)
18
(ii)
22
(iii)
21
(iv)
20
(v)
24
Question
8
8.
The marks obtained by 10 students in a test are given below. Find their median marks.
24
9
2
14
8
48
33
30
36
45
(i)
24
(ii)
29
(iii)
28
(iv)
26
(v)
27
Question
9
9.
Heights of 14 students (in cm) are given below. Find the median height.
145
163
127
166
129
148
159
155
170
130
145
171
155
164
(i)
155
cm
(ii)
153
cm
(iii)
156
cm
(iv)
157
cm
(v)
154
cm
Question
10
10.
Heights of 15 plants (in cm) are given below. Find the median height.
60
95
96
78
66
79
100
51
58
63
82
84
64
63
100
(i)
77
cm
(ii)
76
cm
(iii)
79
cm
(iv)
80
cm
(v)
78
cm
Question
11
11.
Ages of 11 students (in years) are given below. Find the median age.
12
10
12
14
12
14
15
12
11
14
12
(i)
10
years
(ii)
12
years
(iii)
13
years
(iv)
14
years
(v)
11
years
Question
12
12.
Rainfall of 13 days (in mm) are given below. Find the median rainfall.
11
14
12
10
5
10
12
12
12
9
11
10
10
(i)
9
mm
(ii)
10
mm
(iii)
13
mm
(iv)
12
mm
(v)
11
mm
Question
13
13.
Scores of 14 students are given below. Find the median score.
90
78
73
81
70
79
82
76
90
90
73
74
77
83
(i)
157
2
(ii)
161
2
(iii)
79
(iv)
159
2
Question
14
14.
Temperatures of 15 days (in °C) are given below. Find the median temperature.
26
29
31
25
33
30
30
27
27
26
35
25
32
29
28
(i)
27
°C
(ii)
31
°C
(iii)
30
°C
(iv)
29
°C
(v)
28
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
57
56
48
57
54
46
58
41
50
51
55
55
50
46
(i)
109
2
kg
(ii)
105
2
kg
(iii)
107
2
kg
(iv)
53
kg
Question
16
16.
Daily wages of 10 labourers (in ₹) are given below. Find the median wage.
446
321
448
451
484
495
450
313
433
470
(i)
₹
449.00
(ii)
₹
448.00
(iii)
₹
447.00
(iv)
₹
450.00
(v)
₹
451.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
27
,
find the observations of the data
(i)
19
,
27
,
38
(ii)
22
,
27
,
40
(iii)
36
,
27
,
72
(iv)
18
,
27
,
36
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
60
and
40
respectively and
x
3
-
x
1
=
100
,
find
x
1
,
x
2
,
x
3
(i)
22
,
40
,
122
(ii)
24
,
40
,
124
(iii)
40
,
40
,
240
(iv)
20
,
40
,
120
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
13
and x +
24
and the median as
25
1
2
,
find the value of x.
(i)
6
(ii)
7
(iii)
9
(iv)
8
(v)
4
Assignment Key
1) (v)
2) (v)
3) (i)
4) (v)
5) (iii)
6) (iii)
7) (iii)
8) (v)
9) (i)
10) (v)
11) (ii)
12) (v)
13) (i)
14) (iv)
15) (ii)
16) (i)
17) (iv)
18) (iv)
19) (ii)
